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W. D. F.AMS. J1:y

I FILTER. No. 433,710. Patented Aug. 5, 1890.

f Z l7c JC ggg-lnl" K l I Z' g1/monton .1,35% @lt/manu@ WILLIAM D. P. AIMS, JR., on rI-nLADELrrnA, rENNsYLvANIA.

FlLTER.

SPECIFICATION farming pm of Letters raient no. eser/1o. dated August-'5, 1890.

Application led February 11,1890. Serial No. (1139.965` (No model.) l

To a/ZZ whom it may concern.-

Be it known that I, WrLLIAMYD. P.'Anns,' Jr., a citizen of the United` States, residing in the city and county of'Philadelphia, and Stat-em of Pennsylvania, have invented certain new and useful Improvements in Filters, of which the following is a specification.

My invention relates morejparticularly to that class of filters adapted' to be used more especially in householdsor other similarr places in connection with the usual domestic water-supply; and it has for its object'ftoplro-y vide a simple, cheap, and efficient apparatus which shall bc capable of effectually purifying thewater and capableof being attached to any of the ordinary forms offaucets or cocks.

To this endmy invent-ion consists in a filter constructed and arranged substantially as l hereinafter more particularly pointed out.'

Referring to the accompanying drawings, Figure l isavertical section on the preferred embodiment of my improved filter. Fig. 2 is a plan view, a portion being broken away.

The case A may be made of any suitable material, although I prefer metal, which is non-oxidizable under the influence of the liquid with which it is to be used, and while the shape of the case may Vary to suit the purposes forwhich itis intended l have found the form shown in the drawings to be a convenient and effective one. The'case is formed with a body portion B, preferably cylindrical in shape, and constructed at one end to form the capG. The other end of the case is providcd'with a removable cap D, having a fiange d, with an external screw-thread adapted to engage with a similar screw-thread ZJ on the interior of the body portion B. ',lhe outside of the cap is milled or ruttened at D', and the body portion is also similarly milled or ruttened' in order to detach or secure the parts together.

yiiow oli-fthe fluid. through the filter. In order to efectually retain this filtering medium in the medium a covering of fabric F, preferably in the form of felt, and outside of` this felt I place a disk G of foralninous material, and these disks are-made slightly smaller than thev internal diameter of the case, while thefelted fabric -is made slightly larger. In this Way .the edges of the foraminous material tinvside the turned-up edges g of the felted fabric and aid in securing a tight joint against escaping, when the felt and the fibers become more compacted, increasing the tightness of the joint. ln order to further aid in securing this joint and holding the pantalla place, l provides; ringil, 'preferably of elasthe foraminous diaphragm or plate F and felted fabric G and securely presses them being elastic or flexible, is sprung into position4 and lcomplet-es the joint between the felted fabricand the oase, and at the same time forms a bearing-for the internal edge of the screw-threaded flange CZ of the cap D.

While l may make both caps or ends 4C l) removable, I prefer and find it necessary to -rnake only one removable, the other, as C, be-

ing formed in. one piece with the body B of the filter, and, if desired, an odset or ledge c may be formed therein to receive and support the ring H and the diaphragme F G.

ing this filter to any of the ordinary cocks or faucets in generaluse, the ends of the caps are formed with nipples I, which are screwthreaded on their internal and external edges and are of such a size as can be readily attached to the ordinary screw-faucet either in` ternally or externally. Fit-ted to the nipples l are the screw-caps K, which are.' screwthreaded internally to fit the external screurn thread of the flanges, and the central portion 'land between the cap and the flange I piace ing i, which washer, being of flexible material,

is adapted torfit over an ordinary goose-neck spigot and to tightly hold the filter in posithe filter, I place at either side of the body of y the walls of .the filter to prevent the material against the side Walls of the case. This ring,

tic or flexible material, which is placed upon' bears against the upturned edgesg of the' ln order to provide ready meansv of attachof the cap is. cut away to form an opening lc,

a washer or gasket L, having a smaller openl tion thereon. Ofcom-se it will be understood that when the iange is to be screwed onto the cock the cap and itsgasket are removed; but through the medium of the internal and externalscrew-threaded flange and the perfo` rated cap I provide means for attaching them to any of the ordinary faucets or cooks'in common use.

.I am aware that it is not broadly new to make a reversible-filter, nor to use foraminous diaphragms in connection'therewith; nor is it broadly new to provide an elastic washer to fit a nozzle of a pipe and to hold a device thereon'. In my apparatus, however, I have combined these old features with other fea tures and made a new article of manufacture which is capable of use in various conncctions, and I provide a filtering medium with means for retaining it in position under all conditions and supply a simple, cheap, and eifective household article.

Vhat I claim is- 1. A reversible filter for attachment to the ordinary cocks and faueets,.consisting of a case having at each end an internally and externally screw-threaded nipple, and a perforated cap screwed to said nipple having a perforated elastic Washer con fined between the nipple and cap,whereby the filter may be attaehed to an internally or externally threaded cock or to an ordinary goose-neck spigot, substantially as described.

2. AA reversible filter consistingof a ease having nipples on its opposite ends, a filter- -ngmedium inclosed in the case,adiaphragm of felted fabric on each side of the medium, a disk of foraminous material on the fabric, elastic rings resting on tho foraminous material and engaging the upturned edges of the felted fabric, and a screw-cap fitting the body portion ofthe filter and engaging the elastic washer, substantially as described.

In testimon whereof I have signed 1n' y name to this specification in the presence of two subscribing witnesses.

WM.I D. P. AIMS,'JR.

Witnesses:

THEoDoRE D. BENTLEY, Jr., SHERMAN G. BENTLEY. 

